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ON TABANID^ COLLECTED IN NORTH-EASTERN RHODESIA 

 AND KATANGA, CONGO FREE STATE, BY Dr. S. AND 

 Mr. S. a. NEAVE, WITH DESCRIPTIONS OF NEW SPECIES. 



By ERNEST E. AUSTEN. 

 {Published hy permission of the Trustees of the British Museum.) 



Part I.— PANGONIIN^. 



Through the kindness of Mr. S. A. Neave, the types of all new species 

 described below have been presented to the British Museum (Natural 

 History). 



Genus CHRrSOPS, Meigeu. 



Chrysops neavei, sp. n. (Fig. 1.) 



$ . — Length (1 specimen) 7*5 mm. ; width of head 2'4 mm. ; width of 

 front at vertex just under 1 mm. ; length of wing 7*25 mm. 



Someivhat resembling a small specimen of Chrysops silacea, Austeri, in the 

 coloration and markings of the tJiorax and abdomen and in general appearance^ 

 but easily distinguishable by the wing-markings. — Head chrome-yelloio* ; thorax 

 clove-brown.^ icith longitudinal, cJirome-yeUoiv polUnose stripes ; scidellum clove- 

 brown, its lateral and posterior border broadly ochraceous-rufous and clothed 

 with chrome-yellow pollen ; abdomen ochraceoiis, dorsum with a pair of admediaii, 

 longitudinal, clove-brown stripes, extending from base to a little beyond middle ; 

 wings without a sharply defined dark transverse band, proximal portion {except 

 costal border) hyaline, costal border and distal portion from level of distal 

 extremities of basal cells mummy-brown, second siibmarginal cell and. distal 

 extremities of first four jjosterior cells p)aler. 



Head clothed with chrome-yellow pollen, except on clove-brown frontal 

 callus, on a relatively large and conspicuous similarly coloured spot sur- 

 rounding the ocelli, on the shining, dark mummy-brown facial tubercle or 

 tubercles, and on an ill- defined clove-brown area on the jowl below each eye ; 

 frontal callus roughly semicircular in outline, and very convex and prominent, 

 distinctly separated from eye on each side, somewhat paler in centre of lower 

 margin ; ocellar spot connected behind with margin of vertex but well 

 separated from eyes ; facial tubercles, in typical specimen at any rate, pre- 

 senting the appearance of a single, polished, elongate cordate tubercle, 



* For names and illustrations of colours, see Ridgway, ^ A Nomenclature of Colors for 

 Naturalists' (Boston: Little, Brown, & Company, 1886). 

 BULL. ENT. RES. VOL. I. PART 4, DECEMBER I9IO. 



